Method of making an absorbent composite and absorbent articles employing the same
AssigneeDSG Technology Holdings Ltd.
InventorsAndrew C. Wright, Eugenio Varona, Anne Smid, Dennis Smid
Life of this patent
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Abstract
Disclosed is an absorbent core composite for a disposable absorbent article. The absorbent composite has a first fabric, a body side second fabric, and a plurality of aggregates of superabsorbent particles (SAP) situated between the first fabric second fabric. About each of a plurality of the SAP aggregates, an arrangement of spaced apart bond sites secure the second fabric to the first fabric and form a pocket in which the SAP aggregate is secured between the first fabric and the second fabric. The body side second fabric is a bulky nonwoven including fibers that entangle at least some particles in the SAP aggregate.
Claims33
An absorbent core composite for a disposable absorbent article, comprising:
- a first fabric;
- a body side second fabric;
- and
- a plurality of aggregates of superabsorbent particles (SAP) situated between said first and second fabric;
- wherein, about each of a plurality of said SAP aggregates, an arrangement of spaced apart bond sites secure the second fabric to the first fabric and form a pocket in which the SAP aggregate is secured between the first fabric and the second fabric and, wherein spaced apart bond sites about said SAP aggregate provides gaps between bond sites that communicate said pocket with an adjacent said pocket;
- and
- wherein said body side second fabric is a bulky nonwoven including fibers entangling at least some particles in said SAP aggregate.
A method of manufacturing an absorbent composite laminate for a disposable absorbent article, comprising:
- conveying a first fabric into position to receive superabsorbent particles (SAP);
- depositing SAP on said first fabric to provide discrete aggregates of SAP;
- conveying a second fabric of a bulky nonwoven;
- positioning the second fabric relative to said first fabric such that fibers of said bulky nonwoven entangle particles in a top layer of particles of the SAP aggregate, thereby securing, at least partly, the SAP aggregate therebetween;
- bonding said first and second fabric at a network of bond sites to form an elongated laminate having a plurality of pockets of SAP aggregate, whereby each pocket is defined by bond sites positioned about a SAP aggregate and securing the second fabric to the first fabric;
- and
- conveying the elongated laminate, whereby said bulky nonwoven and said pockets inhibit SAP particle migration from said pockets.
A disposable absorbent article, comprising:
- a chassis body defined by a first end margin and a second end margin longitudinally spaced from the first end margin, the end margins partially defining front and back waist regions that are fastenable about a waist of a user;
- a topsheet;
- a backsheet;
- and
- an absorbent composite disposed between the topsheet and backsheet, the absorbent composite including
- a first fabric;
- a second fabric bonded to said first fabric;
- and
- absorbent particles secured between said first and second fabric;
- and
- wherein the first fabric is intermittently attached to the second fabric to define a plurality of pockets situated between the first fabric and the second fabric and containing an aggregate of superabsorbent particles (SAP);
- and
- wherein discontinuous and spaced apart bond sites secure the first fabric with the second fabric;
- wherein said second fabric is a bulky nonwoven material positioned on a bodyside of the absorbent composite and over the SAP aggregate such that fibers of the bulky nonwoven entangle superabsorbent particles;
- and
- wherein said SAP aggregate is free of an absorbent matrix in a middle portion extending from beneath the bulky nonwoven material.
Dependencies are inferred from the claim text.